The daemons hpssd and hpiod belong to the HP Linux Imaging and Printing service

root@linux:~ # cat /etc/init.d/hplip
# chkconfig: 2345 50 10
# description: Start/stop script for HP Linux Imaging and Printing (HPLIP).

echo -n $”Starting hpiod: ”
cd $HPIODDIR
daemon ./hpiod
RETVAL=$?
echo
[ $RETVAL = 0 ] && [ -d /var/lock/subsys ] && touch /var/lock/subsys/hpiod
echo -n $”Starting hpssd: ”
cd $HPSSDDIR
daemon ./hpssd.py
RETVAL=$?

• Linux